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Gastropoda: Trochidae) from the Sicily Channel, with Notes on the Jujubinus Curinii Species Complex

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Zootaxa 3815 (4): 583–590 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2014 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3815.4.8 http://zoobank.org/urn:lsid:zoobank.org:pub:271DDE2F-A3D7-4738-AF15-BED7A74E340C Description of two new Jujubinus species (Gastropoda: Trochidae) from the Sicily Channel, with notes on the Jujubinus curinii species complex CARLO SMRIGLIO, ANDREA DI GIULIO & PAOLO MARIOTTINI Dipartimento di Scienze, Università “Roma Tre”, Viale Marconi, 446, 00146 Roma, Italy. E-mail: [email protected]; andrea.digiu- [email protected]; [email protected] Abstract Based on shell characters, two new species of the gastropod family Trochidae, Jujubinus eleonorae n. sp. and Jujubinus trilloi n. sp., from the Sicily Channel are described. Shells of the new taxa were collected in the lower infralittoral of the Skerki and Talbot Banks, respectively. The new taxa are compared with Jujubinus curinii Bogi & Campani, 2005, mor- phologically the most closely related species. Key words: Mediterranean Sea, Recent, Jujubinus, new species Introduction The genus Jujubinus Monterosato, 1884 comprises a small group of marine trochids (Gastropoda, Trochidae) living mostly in the intertidal zone down to about 80 m, and consistently associated with algal vegetation and/or marine angiosperms (Mariottini et al. 2013). The alpha-taxonomy and distribution of this genus remains unresolved. The genus was described by Monterosato (1884a) only briefly: “Jujubinus, Monts. (nov. sect.). Conchiglie piccole, ornamentate, che formano un gruppo ben distinto dal Zizyphinus”; (small shells, ornamented, forming a distinct group of Zizyphinus). In a further work by Monterosato (1884b), the description of this genus was slightly improved. Many papers dealing with this genus have been published in the last forty years. Nordsieck (1973) commenting the European distribution of Jujubinus species described several subgenera, some of them not ranked as valid taxa by Ghisotti & Melone (1975) in their revision of this genus. Some of the Mediterranean Jujubinus species were discussed by Curini-Galletti & Palazzi (1980), Curini-Galletti (1982a–c), Cretella (1992–1993), Bogi & Campani (2005) and Spanu (2011), while eastern Atlantic taxa were treated by Gofas (1991), Rolán & Templado (2001), Rolán & Swinnen (2009) and Avila et al. (2011) including the description of some new species. According to WoRMS (2013) the genus Jujubinus is represented by 29 species; 18 are listed by CLEMAM (Gofas & Le Renard 2013) as European species, most of them restricted to the Mediterranean Sea. The typical Jujubinus shell has a slender trochiform shape with a sculpture consisting of 4–8 spiral threads of variable strength, often beaded, and with tiny prosocline lamellae between the spiral threads (Monterosato 1884a). The Mediterranean species Jujubinus curinii Bogi & Campani, 2005 shows a peculiar sculpture consisting of flat spiral threads, which are pairing in the abapical part of the last whorl, lacking lamellae between the spiral threads and with a smaller sutural cord (Bogi & Campani 2005). This species is endemic to the Strait of Messina and to our knowledge its distribution is limited to the coralligenous bottoms offshore the coast of Scilla (Calabria, Italy). The Messina Strait is considered as a separate Mediterranean biogeographical microsector (Bianchi 2004), inhabited by rich benthic invertebrate communities, and some particular assemblages that are unknown from other Mediterranean regions (Giacobbe et al. 2007, Bo et al. 2009, Salvati et al. 2010). Recently, we had the opportunity to examine shells of Jujubinus from two locations in the Sicily Channel (Skerki and Talbot Banks). The studied shells represent two new species that resemble J. curinii from these areas. Accepted by A. Nutzel: 7 May 2014; published: 17 Jun. 2014 583 Jujubinus catenatus Ardovini, 2006 described from the Sicily Channel differs from the new taxa described herein by the shell shape (more elongated in J. catenatus) and its sculpture showing the typical prosocline lamellae between the spiral cords (absent in the J. curinii species complex). Furthermore, J. catenatus is a a circalittoral species, being collected at a depth of 45–70 m, but no coordinates of the locus typicus were reported (Ardovini, 2006). Similar to the Strait of Messina, from where the endemic J. curinii has been described (Bogi & Campani, 2005), the Sicily Channel represents a Mediterranean location of high diversity for the genus Jujubinus. The occurrence of three endemic Jujubinus species in such a restricted geographical area could be explained by specific preferences to particular habitats exclusive to this area, possibly combined to limited larval dispersal capabilities. Jujubinus from the Sicily Channel is not an isolated case of gastropod endemism in the Mediterranean Sea. For example, the trochid Gibbula nivosa Adams, 1851 is endemic near Malta Island (Evans et al., 2011), and probably has restricted larval dispersal. Acknowledgements The authors gratefully acknowledge Piergiorgio Trillò (Rome, Italy) and Eleonora De Sabata (Rome, Italy) who collected the marine sediment samples, from Talbot and Skerki Banks respectively, that allowed the description of the new taxa. We are indebted to Filippo La Ciura Vicuna (Syracuse, Italy), Commander of the boat Merak, for cooperation and technical support during the diving on the Talbot and Skerki Banks. We would like to express our gratitude to Massimo Appolloni (Museo Civico di Zoologia di Roma, Rome, Italy) for the examination of the Jujubinus material kept in the Monterosato collection. Sincere acknowledgments are due to Marco Oliverio (University “La Sapienza”, Rome, Italy) for his critical suggestions. We would like to thank the reviewers for their helpful comments and the resulting improvements in the paper. We thank Richard C. Brusca (University of Arizona, Tucson, AZ, USA) for improving the English. References Adams, A. (1851) Contributions towards a monograph of the Trochidae, a family of gastropodous Mollusca. Proceedings of the Zoological Society of London, 14, 150–192. http://dx.doi.org/10.1111/j.1096-3642.1851.tb01153.x Ardovini, R. (2006) Jujubinus catenatus sp. n. (Gastropoda, Trochidae) del Canale di Sicilia. Malacologia - Mostra mondiale (Cupra Marittima), 52, 6–7. Avila, S.P., Borges, J.P. & Frias Martins, A.M. de (2011) The littoral Trochidea of the Azores. Journal of Conchology, 40 (4), 408–427. Bianchi, C.N. (2004) Proposta di suddivisione dei mari italiani in settori biogeografici. Notiziario SIBM, 46, 57–59. Bo, M., Bavestrello, G., Canese, S., Giusti, M., Salvati, E., Angiolillo, M. & Greco, S. (2009) Characteristics of a black coral meadow in the twilight zone of the central Mediterranean Sea. Marine Ecology Progress Series, 397, 53–61. http://dx.doi.org/10.3354/meps08185 Bogi, C. & Campani, E. (2005) Jujubinus curinii n. sp. una nuova specie di Trochidae per le coste della Sicilia. Bollettino Malacologico, 41 (9–12), 99–101. Cretella, M. (1992–1993) Rassegna delle specie viventi del genere Jujubinus Monterosato, 1884 (Gastropoda: Trochidae) (Parts I–IV). La Conchiglia, 264 (1992), 265 (1992), 266 (1993), 266 (1993), 14–23 & 16–20 & 45–50 & 40–46. Curini Galletti, M. & Palazzi, S. (1980) Note ai Trochidae. II. Riscoperta di Trochus ruscurianus Weinkauff, 1868. Atti della Società Toscana di Scienze Naturali, Memorie, 87, 463–480. Curini Galletti, M. (1982a) Note ai Trochidae, VI. Jujubinus Baudoni H. Martin in Monterosato, 1891. Atti della Società Toscana di Scienze Naturali, Memorie Serie B, 89, 75–85. Curini Galletti, M. (1982b) Note ai Trochidae, VII. Jujubinus elenchoides (Monts. In Issel, 1878). Bollettino Malacologico, 18 (9–12), 217–224. Curini Galletti, M. (1982c) Note ai Trochidae, IX. Jujubinus ruscurianus (Weinkauff, 1868). Bollettino Malacologico, 18 (7–8), 145–150. Evans, J., Borg, J.A. & Schembri, P.J. (2011) Distribution, habitat preferences and behaviour of the critically endangered Maltese top-shell Gibbula nivosa (Gastropoda: Trochidae). Marine Biology, 158, 603–611. http://dx.doi.org/10.1007/s00227-010-1584-4 Ghisotti, F. & Melone, G. (1975) Catalogo illustrato delle conchiglie marine del Mediterraneo, 5. Conchiglie, 11 (11–12), 163–191. Giacobbe, S., Laria, G. & Spanò, N. (2007) Hard bottom assemblages in the strait of Messina: distribution of Errina aspera L. NEW JUJUBINUS SPECIES FROM SICILY Zootaxa 3815 (4) © 2014 Magnolia Press · 589 (Hydrozoa: Stylasteridae). Rapport Commission International Mer Méditerranée, 38, 485. Gofas, S. (1991) Un nouveau Jujubinus d'Angola. Apex, 6 (1), 21–24. Gofas, S. & Le Renard, J. (2013) CLEMAM: Check List of European Marine Mollusca. Available from: http:// www.somali.asso.fr/clemam/index.clemam.html (accessed 9 November 2013) Gofas, S., Moreno, D. & Salas, C. (2011) Moluscos Marinos de Andalucia I. Universidad de Malaga, Servicio de Publicaciones e Intercambio Cientifico, Malaga, 342 pp. Locard, A. (1903) Coquilles des mers d'Europe. “Turbinidae”. Lyon, Impr. de A. Rey, 66 pp. Mariottini, P., Di Giulio, A., Appolloni, M. & Smriglio, C. (2013) Phenotypic diversity, taxonomic remarks and updated distribution of the Mediterranean Jujubinus baudoni (Monterosato,1891) (Gastropoda, Trochidae). Biodiversity Journal, 4 (2), 343–354. Monterosato, T. Di M. (1884a) Conchiglie littorali mediterranee. Naturalista Siciliano, Palermo, 3 (4), 102–111. Monterosato, T. Di M. (1884b) Nomenclatura generica e specifica di alcune conchiglie
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    Morphological and ecological adaptation of limpet-shaped top Title shells (Gastropoda: Trochidae: Fossarininae) to wave-swept rock reef habitats Author(s) Yamamori, Luna; Kato, Makoto Citation PLOS ONE (2018), 13(8) Issue Date 2018-08-22 URL http://hdl.handle.net/2433/234086 © 2018 Yamamori, Kato. This is an open access article distributed under the terms of the Creative Commons Right Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Type Journal Article Textversion publisher Kyoto University RESEARCH ARTICLE Morphological and ecological adaptation of limpet-shaped top shells (Gastropoda: Trochidae: Fossarininae) to wave-swept rock reef habitats Luna Yamamori*, Makoto Kato Graduate School of Human and Environmental Studies, Kyoto University, Sakyo, Kyoto, Japan * [email protected] a1111111111 a1111111111 a1111111111 a1111111111 Abstract a1111111111 Flattening of coiled shells has occurred in several gastropod lineages, while the evolutionary process of shell flattening is little known. The subfamily Fossarininae of the top shell family (Trochidae) is unique, because it includes four genera at various stages of shell flattening. Broderipia and Roya, have zygomorphic shells that has lost coiling, while the sister genera, OPEN ACCESS Fossarina and Synaptocochlea, have respectively turbiniform and auriform shells. There- Citation: Yamamori L, Kato M (2018) fore, comparisons of biology, habitats and detailed morphology among these four genera Morphological and ecological adaptation of limpet- shaped top shells (Gastropoda: Trochidae: may help us to detect selection pressure driving shell flattening and loss of coiling. Although Fossarininae) to wave-swept rock reef habitats. Broderipia has recently been identified as living symbiotically in the pits of sea urchins, the PLoS ONE 13(8): e0197719.
  • Cittarium Pica (West Indian Topshell) Superfamily: Trochoidea (Top Snails) Class: Gastropoda (Snails and Slugs) Phylum: Mollusca (Molluscs)

    Cittarium Pica (West Indian Topshell) Superfamily: Trochoidea (Top Snails) Class: Gastropoda (Snails and Slugs) Phylum: Mollusca (Molluscs)

    UWI The Online Guide to the Animals of Trinidad and Tobago Ecology Cittarium pica (West Indian Topshell) Superfamily: Trochoidea (Top Snails) Class: Gastropoda (Snails and Slugs) Phylum: Mollusca (Molluscs) Fig. 1. West Indian topshell, Cittarium pica. [http://www.gastropods.com/4/Shell_24.shtml, downloaded 30 March 2015] TRAITS. Littoral (part of the sea close to the shore) gastropod commonly referred to as the West Indian topshell or whelks, C. pica attains the size of 10cm with its shell having black and white markings (Fig. 1). The shell is conical (Sartwell, 2013) with younger specimens being mostly white, but may have a greenish/yellowish tinge due to the staining of blue-green algae (Randall, 1964). The inner shell surface is nacreous (mother of pearl). There are patterns of coarse checkering of alternating white and black per whorl (turn) of the shell. C. pica has a muscular foot which assists in its slow crawling and holding on to rocks. UWI The Online Guide to the Animals of Trinidad and Tobago Ecology DISTRIBUTION. Cittarium pica is widely distributed throughout the West Indies, the Central and South American coast from upper Yucatan to Trinidad. The occurrence of C. pica in Florida and Bermuda were found as fossils. An attempt to reintroduce the species in Bermuda was made but was not successful. It is believed that the species in these areas died out in very recent times (Randall, 1964). The entire distribution range is in the Caribbean. HABITAT AND ACTIVITY. C. pica is found on rocky shorelines of tropical and temperate waters. These are commonly found in the intertidal and shallow sub tidal zones (as seen in Fig.
  • Common Topshells: an Introduction to the Biology of Osilinus Lineatus with Notes on Other Species in the Genus

    Common Topshells: an Introduction to the Biology of Osilinus Lineatus with Notes on Other Species in the Genus

    Field Studies, 10, (2001) 115 - 160 COMMON TOPSHELLS: AN INTRODUCTION TO THE BIOLOGY OF OSILINUS LINEATUS WITH NOTES ON OTHER SPECIES IN THE GENUS J. H. CROTHERS Egypt Cottage, Fair Cross, Washford, Watchet. Somerset TA23 0LY ABSTRACT This review concentrates on those features of common topshell biology that are amenable to field study – distribution, abundance, population structure, response to environmental stimuli etc. It was written to help students plan simple but interesting projects by providing the essential background information. As the title suggests, it is concerned primarily with the northern species but includes sufficient information on the others to stimulate interest during Mediterranean and Macaronesian holidays. INTRODUCTION Many students of Biology are required to carry out some form of individual project as an integral part of their course. Despite reminders that assessment is usually directed at the manner in which the work was planned and executed (and not on the scientific interest of the result), the more able candidates often insist on choosing an ‘interesting’ topic - in an ‘interesting place’. For many of us, that ‘interesting place’ means a rocky sea shore. In that habitat, marine snails offer the widest range of possibilities for projects. A ‘Good Project Species*’ must (a) be easy to find, (b) be easy to identify, (c) show striking differences in some measurable feature (e.g., abundance, size, age, shape) that can be related to a measurable environmental factor and (d) have an adequate background literature, sufficient to allow the student both to predict patterns and also to interpret any results derived from the investigation. Osilinus Philippi, 1847 is a genus of herbivorous gastropod molluscs (snails) of rocky sea shores in the North-East Atlantic.